Data analysis for precision 21 cm cosmology

A Liu, JR Shaw - Publications of the Astronomical Society of the …, 2020 - iopscience.iop.org
The redshifted 21 cm line is an emerging tool in cosmology, in principle permitting three-
dimensional surveys of our universe that reach unprecedentedly large volumes, previously …

21 cm cosmology in the 21st century

JR Pritchard, A Loeb - Reports on Progress in Physics, 2012 - iopscience.iop.org
Imaging the Universe during the first hundreds of millions of years remains one of the
exciting challenges facing modern cosmology. Observations of the redshifted 21 cm line of …

Fundamental physics with the square kilometre array

A Weltman, P Bull, S Camera, K Kelley… - Publications of the …, 2020 - cambridge.org
The Square Kilometre Array (SKA) is a planned large radio interferometer designed to
operate over a wide range of frequencies, and with an order of magnitude greater sensitivity …

Late-time cosmology with 21 cm intensity map** experiments

P Bull, PG Ferreira, P Patel… - The Astrophysical …, 2015 - iopscience.iop.org
We present a framework for forecasting cosmological constraints from future neutral
hydrogen intensity map** experiments at low to intermediate redshifts. In the process, we …

64 constraints on reionization: the 21 cm power spectrum at z= 8.4

ZS Ali, AR Parsons, H Zheng, JC Pober… - The Astrophysical …, 2015 - iopscience.iop.org
In this paper, we report new limits on 21 cm emission from cosmic reionization based on a
135 day observing campaign with a 64-element deployment of the Donald C. Backer …

Science with the murchison widefield array

JD Bowman, I Cairns, DL Kaplan, T Murphy… - Publications of the …, 2013 - cambridge.org
Significant new opportunities for astrophysics and cosmology have been identified at low
radio frequencies. The Murchison Widefield Array is the first telescope in the southern …

Measurement of 21 cm brightness fluctuations at z∼ 0.8 in cross-correlation

KW Masui, ER Switzer, N Banavar… - The Astrophysical …, 2013 - iopscience.iop.org
In this Letter, 21 cm intensity maps acquired at the Green Bank Telescope are cross-
correlated with large-scale structure traced by galaxies in the WiggleZ Dark Energy Survey …

A per-baseline, delay-spectrum technique for accessing the 21 cm cosmic reionization signature

AR Parsons, JC Pober, JE Aguirre… - The Astrophysical …, 2012 - iopscience.iop.org
ABSTRACT A critical challenge in measuring the power spectrum of 21 cm emission from
cosmic reionization is compensating for the frequency dependence of an interferometer's …

New limits on 21 cm epoch of reionization from paper-32 consistent with an x-ray heated intergalactic medium at z= 7.7

AR Parsons, A Liu, JE Aguirre, ZS Ali… - The Astrophysical …, 2014 - iopscience.iop.org
We present new constraints on the 21 cm Epoch of Reionization (EoR) power spectrum
derived from three months of observing with a 32 antenna, dual-polarization deployment of …

H i constraints from the cross-correlation of eBOSS galaxies and Green Bank Telescope intensity maps

L Wolz, A Pourtsidou, KW Masui… - Monthly Notices of …, 2022 - academic.oup.com
We present the joint analysis of Neutral Hydrogen (H i) Intensity Map** observations with
three galaxy samples: the Luminous Red Galaxy (LRG) and Emission Line Galaxy (ELG) …